ACK: [SRU][F/J/M][PATCH 0/1] Fix UBSAN: array-index-out-of-bounds in drivers/net/hyperv/netvsc.c

[Tim Gardner]

On 4/1/24 9:04 PM, Guoqing Jiang wrote:
> SRU Justification
> 
> BugLink: https://bugs.launchpad.net/bugs/2058477
> 
> [Impact]
> error message "UBSAN: array-index-out-of-bounds in drivers/net/hyperv/netvsc.c:1446:41" appears
> multiple times during boot for a Hyper-V environment.
> 
> [Fix]
> Clean cherry-pick commit bb9b0e46b84 for Focal, Jammy and Mantic.
> 
> [Test case]
> check the dmesg to see if there is the error message "UBSAN: array-index-out-of-bounds"
> 
> [Regression Potential]
> DPDK which processes netvsc packets, so it might incompatible with ancient DPDK, but modern DPDK
> had already used flexible array member.
> 
> Saurabh Sengar (1):
>    hv: hyperv.h: Replace one-element array with flexible-array member
> 
>   include/linux/hyperv.h | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
Acked-by: Tim Gardner <tim.gardner at canonical.com>
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Tim Gardner
Canonical, Inc